Virtual Machine Oracle
Emmanuelle Riker
IT teams can simplify development environments by running the same solution on any x86 host operating system (OS) and support a wide range of OS versions on virtual machines (VMs). Supported host operating systems include Windows, Linux, and macOS.
An easy-to-use graphical user interface (GUI) and a powerful command line interface make it easy for developers to work with multiple operating systems on the same system. Development teams can consolidate workloads using VirtualBox to support massive workloads of up to 32 virtual CPUs.
The built-in GUI makes it easy for developers to import and export virtual machines in standard OVF format, on-premises or in the cloud. For Oracle Cloud Infrastructure, a single click enables developers to upload or download a virtual machine.
VirtualBox facilitates the distribution of desktop-based images of critical restricted applications by IT managers to remote workers when a VPN connection is considered insufficient. It helps organizations increase security with role-based restrictions to datasets within these applications.
VirtualBox secures remote connections to restricted applications via 256-bit encryption keys, and ensures users cannot download or store data on remote devices. IT managers can avoid the cost and time of rearchitecting restricted applications while addressing compliance for remote application access.
The extension pack, licensed under the VirtualBox Personal Use and Evaluation License (PUEL), enables IT teams to consolidate more workloads using additional features such as:
- Virtual USB devices
- VirtualBox Remote Desktop Protocol (VRDP) support
- Host webcam passthrough and PCI passthrough
- Intel PXE boot ROM
- Disk image encryption
- Oracle Cloud Infrastructure integration
Organizations can streamline operations by purchasing Oracle VM VirtualBox Enterprise, which includes commercial licenses and technical support and provides:
- 24x7 support from Oracle for the Base Package and Extension Pack
- Multiple remote desktop connections (VRDP) to virtual machines
- Centralized, easy tracking of VirtualBox Extension Pack downloads and installation compliance
- Ensures all VirtualBox instances are on the latest release and have the latest security patches
Secunet increased their market share by 70% by embedding Oracle VM VirtualBox in their new virtualized workstations, which allow customers to securely access highly classified information while also utilizing the internet.
IT managers can reduce the number of required systems and configurations in their environment by using Oracle VM VirtualBox to support multiple OS and versions on a single device. They support legacy applications on new hardware, and provide remote workers secure access to restricted applications without rearchitecting applications.
Developers use VirtualBox to deliver code faster by testing applications on different operating systems and versions using the same desktop they use for development, and then automatically deploying their VMs to production environments.
Oracle VM VirtualBox 7.0, available now, is packed with new features. These include integration with OCI, enhanced 3D support, an automated virtual machine (VM) builder, and full VM encryption. The new features will help organizations simplify the management of their VMs and help accelerate application deployment in the cloud and on-premises.
I am a big fan of developing on virtual machines. This gives me freedom on which VM I am working on (based on current project) and also possibility to ease backup and restore. VMs also give me environment which is closer to client environments as I am using Windows Server as OS and other nice features. Using VMs is also great form of avoiding problems with lots of Sitecore instances on one machine and filling in memory, CPU, and so on with lots of processes.
I've installed TIA15 with WinCC Professional, StartDrive and a bunch of other TIA related software on Oracle VM ( i understand it's not officially supported) . I have an issue that I'm curious if it happens on VMware which is supported by siemens.
To avoid all that what I had to do with other projects is that I copied the project folder I wanted to open from the host system to the guest system and did the upgrade then copied it back to the host system where I store all my programs.
I wasted two day trying to get vmWare workstation pro 14 to work and decided to stick with ORacle's virtualbox. And now I remember going through the same crap a couple of years ago and I believe I tried on both windows and linux systems and couldn't get it to work which turned me off virtual machines altogether and it wasn't until I tired virtualbox that I started using them.
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We have Virtual machine in non clustered mode where we install Oracle 11g database application and oracle databases used by various applications.
Our Current virtual machine set up is:
OS root file system resides on a single LVM partition and oracle related things reside in separate LVM based file systems.
To make it clear:
/ -> Created using LVM from a dedicated virtual disk
Oracle Apps -> Created using LVM which uses a dedicated virtual disk
Oracle Backup -> Created using LVM which uses a dedicated virtual disk
Oracle Log -> Created using LVM which uses a dedicated virtual disk
Oracle Datafiles -> Created using LVM which uses a dedicated virtual disk
So, basically each LVM uses a Physical volume and each physical volume is created using a dedicated virtual disk of the size required by resultant LVM partition.
So not only that Oracle related things use separate file systems, but also that those individual (LVM based )file systems reside on individual dedicated virtual disks of different different sizes.
Question is, should those oracle related partitions currently using LVM file systems should really be using its own separate virtual disk or can this be simplified by using one or more large virtual disks (2TB) assigned to the Oracle Linux VM and then using that large disk(s) to create LVM paritions and later file systems for App,Backup,Log, Datafiles,etc?
In either case, the OS root file system will use its own dedicate virtual disk, so question is for the oracle related partitions.
So do you think using a large disk or many large virtual disks to create separate LVM partitions, though simplified, will be more of a performance problem compared to existing design of each lvm using dedicated virtual disks?
Our Virtualization environment is based on VMware.
Thank you for the platform to ask the questions so easily.
Thanks!
ug.
and Connor said...The reality with most modern storage is that the physical disks have been totally abstracted away from the database.
- Your VM might be on a LVM of 3 disks.
- But those 3 disks that have been presented to the VM, might be 3 files on the raw server.
- Those 3 files might sit on 1 volume
- That 1 volume might sit on 8 LU's from network attached storage
- Those 8 LU's might sit on 64 striped volumes
- Some of that data might be cached in the storage device NVRAM, or on flash disk
The list goes on and on and on ...
I see no major issues with the strategy you're using, but why not do some prelimnary testing of IO performance with Swingbench, Orion, SLOB, DBMS_RESOURCE_MANAGER.CALIBRATE_IO.
Googling for any of those will give you some easy to setup and run tests.
Hope this helps.
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The only vCPUs that are available on the constrained VM skus are the ones which are active. vCPUs that are inactive on a constrained VM are not available in any sense of the word. The vCPU may have been allocated to the virtual machine, but they are not available to the virtual machine, which is common for any virtual compute in a public cloud.
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